PRIME Observation Log 2025/07/22

Return to index
Previous day Next day

Raw Log (Time is in SA time)
Ramp Log (Time is in UT)
CCMain Error Log (Time is in SA time)
Observation Log (Time is in UT)

Date: 2025/07/22
Local observer: Togo
Remote observer:
Weather: Clear, bad seeing, high humidity
Comment:
Detector Temperature: 114.00011 +- 0.00117 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:17:38
Morning 07:08:35
Science Observation
(Sun altitude < -10°)
Start 18:40:11
End 06:46:04
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:40:11
End 04:05:04


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 08:25:37 12:05:53 0.697
GB Time 05:13:51 09:24:52 0.556
Non-GB Time 03:11:45 02:41:00 1.191


Institute Statistics
- ALLSKY time is equally distributed to each institute
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
CALIB 600 00:28:36 00:56:03 0.510
GB 3076 02:26:37 05:13:51 0.467
SAAO 461 00:21:58 00:47:56 0.458
OU 461 00:21:58 00:47:56 0.458
NASA 461 00:21:58 00:47:56 0.458
ABC 461 00:21:58 00:47:56 0.458


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
TWILIGHT 600 00:28:36 00:56:03 0.510
Bulge 3004 02:23:11 05:04:56 0.470
SKY 72 00:03:25 00:08:55 0.385
all_sky_grid 1844 01:27:53 03:11:45 0.458


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
FLAT OH 600 00:28:36 00:56:03 0.510
GB74_test OJ 40 00:01:54 00:05:25 0.352
GB74_dither OJ 24 00:01:08 00:02:19 0.493
GB75_dither OJ 24 00:01:08 00:02:19 0.493
GB76_dither OJ 24 00:01:08 00:02:19 0.493
GB77_dither OJ 24 00:01:08 00:02:19 0.493
GB78_dither OJ 24 00:01:08 00:02:21 0.484
GB79_dither OJ 24 00:01:08 00:02:16 0.503
GB80_dither OJ 24 00:01:08 00:02:19 0.493
GB97_dither OJ 24 00:01:08 00:02:19 0.493
GB96_dither OJ 24 00:01:08 00:02:21 0.484
GB95_dither OJ 24 00:01:08 00:02:19 0.493
GB94_dither OJ 24 00:01:08 00:02:21 0.484
GB93_dither OJ 24 00:01:08 00:02:19 0.493
GB92_test OJ 32 00:01:31 00:07:44 0.197
GB92_dither OJ 48 00:02:17 00:05:17 0.432
GB91_dither OJ 24 00:01:08 00:02:19 0.493
GB108_dither OJ 24 00:01:08 00:02:24 0.474
GB109_dither OJ 24 00:01:08 00:02:16 0.503
GB110_dither OJ 24 00:01:08 00:02:19 0.493
GB111_dither OJ 24 00:01:08 00:02:19 0.493
GB112_dither OJ 24 00:01:08 00:02:16 0.503
GB113_dither OJ 24 00:01:08 00:02:21 0.484
GB114_dither OJ 24 00:01:08 00:03:15 0.352
GCsky 72 00:03:25 00:08:55 0.385
GB76_test OH 20 00:00:57 00:02:41 0.355
GB76_dither OH 240 00:11:26 00:23:22 0.489
GB77_dither OH 240 00:11:26 00:23:11 0.493
GB78_dither OH 240 00:11:26 00:23:17 0.491
GB94_dither OH 240 00:11:26 00:23:33 0.486
GB111_test OH 8 00:00:22 00:02:23 0.159
GB111_dither OH 240 00:11:26 00:23:22 0.489
GB110_dither OH 240 00:11:26 00:23:31 0.486
GB109_dither OH 120 00:05:43 00:11:30 0.497
GB92_dither OH 72 00:03:25 00:07:08 0.480
GB93_dither OH 72 00:03:25 00:07:05 0.484
GB75_dither OH 120 00:05:43 00:11:41 0.489
GB112_dither OH 120 00:05:43 00:11:38 0.491
GB79_dither OH 120 00:05:43 00:14:01 0.408
GB60_dither OH 48 00:02:17 00:04:38 0.493
GB95_dither OH 48 00:02:17 00:04:38 0.493
GB113_dither OH 48 00:02:17 00:04:41 0.488
GB80_dither OH 24 00:01:08 00:02:19 0.493
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB96_dither OH 24 00:01:08 00:02:21 0.484
GB114_dither OH 24 00:01:08 00:02:27 0.465
GB74_dither OH 24 00:01:08 00:02:19 0.493
GB91_dither OH 24 00:01:08 00:02:19 0.493
GB108_dither OH 24 00:01:08 00:02:27 0.465
field11962_test 24 00:01:08 00:05:26 0.210
field11962 40 00:01:54 00:04:40 0.408
field11963 40 00:01:54 00:04:23 0.434
field11964 40 00:01:54 00:03:50 0.497
field11965 40 00:01:54 00:03:47 0.503
field11966 40 00:01:54 00:03:50 0.497
field11967 40 00:01:54 00:03:50 0.497
field11968 40 00:01:54 00:03:52 0.491
field11969 40 00:01:54 00:03:52 0.491
field11970 40 00:01:54 00:03:50 0.497
field11971 40 00:01:54 00:04:09 0.458
field11972_test 20 00:00:57 00:07:49 0.122
field11972 40 00:01:54 00:03:52 0.491
field11973 40 00:01:54 00:03:50 0.497
field11974 40 00:01:54 00:03:47 0.503
field11975 40 00:01:54 00:03:50 0.497
field11976 40 00:01:54 00:03:52 0.491
field11977 40 00:01:54 00:03:52 0.491
field11978 40 00:01:54 00:04:01 0.474
field11979 40 00:01:54 00:03:58 0.480
field11980 40 00:01:54 00:03:52 0.491
field11981 40 00:01:54 00:03:52 0.491
field11982 40 00:01:54 00:03:47 0.503
field11983 40 00:01:54 00:03:52 0.491
field11984 40 00:01:54 00:03:52 0.491
field11985 40 00:01:54 00:03:55 0.485
field11986 40 00:01:54 00:04:04 0.469
field11987 40 00:01:54 00:03:55 0.485
field11988 40 00:01:54 00:03:55 0.485
field11989 40 00:01:54 00:03:55 0.485
field11990 40 00:01:54 00:03:58 0.480
field11991 40 00:01:54 00:03:52 0.491
field11992 40 00:01:54 00:03:52 0.491
field11993 40 00:01:54 00:03:52 0.491
field11994 40 00:01:54 00:03:52 0.491
field11995 40 00:01:54 00:03:52 0.491
field11996 40 00:01:54 00:03:55 0.485
field11997 40 00:01:54 00:04:01 0.474
field11998 40 00:01:54 00:04:01 0.474
field11999 40 00:01:54 00:03:58 0.480
field12000 40 00:01:54 00:03:52 0.491
field12001 40 00:01:54 00:03:58 0.480
field12002 40 00:01:54 00:03:55 0.485
field12003 40 00:01:54 00:03:52 0.491
field12004 40 00:01:54 00:03:52 0.491
field12005 40 00:01:54 00:03:50 0.497
field12006 40 00:01:54 00:05:28 0.349










Stats so far in 2025
Monthly observed fraction so far in 2025
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 103:35:29 259:42:08 0.399
Feb 53:54:42 259:20:18 0.208
Mar 158:57:47 319:07:20 0.498
Apr 161:02:39 338:08:53 0.476
May 244:24:55 372:31:50 0.656
Jun 209:59:39 370:50:11 0.566
Jul 151:25:59 269:23:13 0.562

Observed time so far in 2025
- Total time of each institute is calculated by the following
    [All observation time in 2025] = [Observed time so far] + [Remaining time in the future]
    [Remaining time in the future] = [Clear sky fraction] x [Remaining night time (Sun alt. < -10°)]
    
    [GB observation time in 2025] = [Observed GB time so far] + [Remaining GB time in the future]
    [Remaining GB time in the future] = [Clear sky fraction] x [Remaining GB night time (Sun alt. < -10° & GB alt. > 22°)]
    
    [Non-GB observation time in 2025] = [All observation time in 2025] - [GB observation time in 2025]
    
    [OU, NASA, ABC time in 2025] = 0.24 x [Non-GB observation time in 2025]
    [SAAO time in 2025] = 0.28 x [Non-GB observation time in 2025]
    
- ALLSKY time is equally distributed to each institute
- ToO time is distributed to each institute based on input of observer of each date
- Clear sky fraction of (0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5) is assumed for (Jan, ..., Dec) in the calculation of the remaining observation time
All
(hh:mm:ss) 		GB
(hh:mm:ss) 		Non-GB
(hh:mm:ss) 		SAAO
(hh:mm:ss) 		OU
(hh:mm:ss) 		NASA
(hh:mm:ss) 		ABC
(hh:mm:ss) 		CALIB
(hh:mm:ss)
Total 1877:36:40 963:46:57 913:49:42 255:52:19 219:19:07 219:19:07 219:19:07 162:50:37
Observed 1083:14:39
(57.69%)		 675:22:39
(70.08%)		 407:51:59
(44.63%)		 69:52:25
(27.31%)		 97:03:41
(44.26%)		 179:13:22
(81.72%)		 61:42:30
(28.14%)		 162:50:37
(N/A)
Remaining 794:22:00
(42.31%)		 288:24:17
(29.92%)		 505:57:42
(55.37%)		 185:59:53
(72.69%)		 122:15:26
(55.74%)		 40:05:45
(18.28%)		 157:36:37
(71.86%)		 00:00:00
(N/A)











Camera status (2025/07/22)



Return to index
Previous day Next day